Bearing.



J. STODDARD.

BEARING.

APPL'IOATION FILED AUG.14, 1913.

Patented Mar. 2, 1915.

LIQQMRH IN VEN TOR.

QVITNESSES: 33

A TTORNE Y5 FltlE,

JOHN STGDDARD, OF WILMINGTON, DELAWARE.

BEARING.

Specification of Letters Patent.

' Patented Mar. 2, 1915.

Application filed August 14, 1913. Serial No. 784,778.

To all whom it may concern.-

Be it known that 1, JOHN STODDARD, a citizen of the United States of America, and resident of Wilmington, Delaware, have invented a newand useful Improvement in Bearings, which improvement is fully set.

a succession of closely spaced horizontal.

table-rolls upon which the making-wire rests in its advance through the shaking-section of the machine. The making-wire is also laterally vibrated or shaken with the shaking-section, and by its frictional contact with and pull upon the table-rolls rotates the latter in bearings at opposite ends thereof, said bearings being mounted upon or supported from the side rails, the rolls spanning the space between said rails. To obtain maximum etficiency in operation and to minimize the strain and wear upon the making-wire, it is necessary to accurately adjust each table-roll to uniformly position the series of rolls to the making-wire, and to make readjustment from time to time to compensate for wear upon the bearings. Adjustable bearings have heretofore been devised for this purpose.

One of the principal objects of the present invention is to improve upon such bearings, to afford greater durability and rigidity of structure, ease and accuracy of adjustment, and to impose the wear upon relatively inexpensive and easily replaced parts of the bearing rather than upon the side rails or other parts of the structure which can only; be replaced at considerable expense.

A further object is toprovide a bearing having in conjunction therewith a passage leading therethrough to the opposing surfaces of the axle of the roll and the bearing, and means for supplying through such passage a liquid or semi-liquid which by its action will serve to reduce the friction between said opposing surfaces.

These and'other objects are attained by the structure of this invention, a now preferred embodiment of which is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary top plan view of a portion of a side-rail of the shakingsection of a paper-making machine and three of a series of table-rolls associated therewith; Fig. 2 is a vertical sectional view through one of the table-roll bearings; Fig. 6 is a detail end view of said bearing; Fig. 4 is a transverse section on line 4.4 of Fig.1; and Fig. 5 is an elevation from the right of Fig. 4, showing (in place of the grease cups of Figs. 2 and d) pipe connections to the bearings for supplying thereto liquid under pressure.

The side-rail shown in the drawing includes in its structure the bar 6 with depend ing brackets 7 supporting an angle bar 8.

9 are table-rolls, of which only three are shown in the drawing, each having at oppos site ends thereof projecting axles 10. Each projecting axle 10 rests in a trough-like bearing surface member 11 having thereon a vertic-ally depending stem 12 fitting within a hollow adjustable screw threaded sleeve socket or tubular member 13, a shoulder 1d about the upper end of said stem resting against the upper edge of said screw. The screw 18 makes screw-threaded engagement with an opening through the horizontal lip of the angle bar 8 and carries a lock-nut 15. For longitudinally adjusting each roll 9 and restricting the endwise play thereof in the vibration of the shaking section, there is opposed to the end of each aXle 10 a setscrew 16 threaded horizontally through an opening in the upright lip or flange of the angle bar 8 and carrying a lock-nut 17 As will be obvious, to vertically adjust a roll, the lock-nut 15 of its bearing is first loosened and the hollow screw-threaded member 13 then rotated by any suitable implement, such as a screw-driver engaging the kerfs 18 at the outer end of the screw. The upper end of the screw rotating against the shoulder 14 of the bearing element 11 lifts the latter and with it the axle 10 and roll 9. When the desired position has been attained, the lock-nut 15 is again tightened.

In the lateral movement of the shakeframe, during which the side-rail turns slightly on the pivot at its rear end, the stem 12 of the bearing element 11 turns slightly in the hollow screw-threaded member 13. The vibratory movement of the shake-frame gives an endwise movement to the rolls 9 carried thereby, imposing a corresponding strain and wear upon their bearings. In thebearing of this invention, such wear falls upon the opposing surfaces of the stem 12 and screw 13 tending to wear the opening through the screw to an oblong shape. But the occasional turning of the screw 13 in adjusting the bearing relatively changes the position of the opposing surfaces of the stem 12 and interior of the screw, thereby presenting a fresh surface of the screw to the wear resulting from the endwise move ment of the rolls. When, however, the wear thus imposed uponthe screw 13 renders the latterdefective for its purpose, it is replaced by a fresh screw at small expense. With the lock-nut'15 seated tightly against the angle bar 8, there will be practically no wear imposed uponthe opening through said bar, as has been experienced in other struc- 'ample, as used on automobiles.

the flexible pipe or tur'esin whichsuch wear has necessitated replacing side-bars at considerable expense.

As clearly illustrated'in Figs. 2 and 3, the bottom of the trough-like bearing surface ofthe member 11 is grooved longitudinally at 19, such groovebeing of greatest depth and dimensions at its middle and tapering up to the normal surface at its opposite ends. A' smallpassage 20 leads from the deepest portion of the groove 19 axially through the stem 12. A tubular plug or connection 21, extending upwardly through the lower end of the hollow'screw 13, screwthreads into the lower end of the stem 12 iandcarries at its lower end a grease cup 22 of well known construction, such, for ex- A lubricant, such as a heavy grease in semi-liquid form, may thus be supplied from the grease cup 22 through the tubular connection 21 and the passage 20 to the groove 19, from which it distributes itself over the opposing bearing surfaces. Instead of the tubular connections 21 being provided with grease cups, such as at 22, they may be connected through sections of flexible hose 24 to a supply-pipe 23 which, as shown in Fig. 5, may be common to all or any desired number of the bearings.

hose connections 21 permitting relative movement of the bearings in'the vibration of the shaking-section. B

forcing through the supply-pipe 23 and the connections 21 and 2 1 water under pressure (say of 20 lbs. per square inch) upward through the passage 20 into the groove 19 and there exert an. upward pressure upon the axle 10, tendingto slightly Pipe 23 may be fixed,

it will pass lift or float/the latter in its bearing, thereby materially reducing the extent and force of the contact between the bearing surfaces, with corresponding material reduction in friction. There will be some overflow of water from the bearings, but this will be of little consequence in view of the amount of overflow water which is customary and unavoidable in the operation of paper-making machines.

What I claim is 1. In a paper making machine, the combination with one or more rolls, of bearings therefor, each bearing including in its structure a bearing surface member having a stem thereon, a socket member rotatably supporting the bearing surface member the stem of the latter fitting the socket of the former, a supporting part of the machine upon which said socket member is mounted and vertically adjustable to vary the elevation of the bearing member, and locking means engaging the socket member to secure the same in its adjusted position.

2. In a paper making machine, the combination with one or more rolls, of bearings therefor, each bearing including in its structure a bearing surface member having a stem thereon, and an annular surface, a socket member having an annular seat against which the annular surface on the bearing member bears to thereby rotatably support the latter the stem of one member fitting the socket of the other, a supporting part of the machine upon which said socket member is mounted and vertically adjustable to vary the elevation of the bearing member, and locking means engaging the socket member to secure the same in its adjusted position.

3. In a paper making machine, the combination with one or more rolls, of bearings therefor each bearing including in its structure a bearing surface member having a stem thereon, a socket member rotatably supporting the bearing member the stem of the latter fitting the socket of the former, a supporting part of the machine in an opening of which the socket member is rotatabl y and vertically adjustable to vary the elevation of the bearing member, and locking means engaging the socket member to secure the same in its adjusted position.

4. In a paper making machine, the combination with one or more rolls, of bearings therefor each bearing including in its structure a bearing surface member having a stem thereon, an exteriorly screw-threaded socket member supporting the bearing member the stem of the latter fitting the socket of the former, a supporting part of the machine having an upright screw threaded opening engaged by the exteriorly threaded socket member whereby rotation of the latter also adjusts it vertically to vary the elevation of the bearing member, and locking means engaging the socket member to secure the same in its adjusted position.

5. In a paper making machine, the combination with one or more rolls, of bearings therefor, each bearing including in its structure a bearing surface member having a stem thereon and an annular surface, an eX- teriorly screw-threaded socket member having an annular seat against which the annular surface on the bearing member bears to thereby rotatably support the latter the stem of one member fitting the socket of the other, a supporting part of the machine having an upright screw-threaded opening engaged by the exteriorly threaded socket member whereby rotation of the latter also adjusts it vertically to vary the elevation of the bearing surface member, and locking means engaging the socket member to secure the same in its adjusted position.

6. In a paper making machine, the combination with one or more rolls, of bearings therefor, each bearing including in its structure a bearing surface member having a stem and an annular surface about said stem and below which the stem depends, an exteriorly screw-threaded socket member the upper end of which constitutes an annular seat against which the annular surface on the bearing member bears to thereby rotatably support the latter the stem of one member fitting the socket of the other, a supporting part of the'machine having an upright screw-threaded opening engaged by the eXteriorly threaded socket member whereby rotation of the latter also adjusts it vertically to vary the elevation of the bearing member, and a lock-nut on the screw-threaded socket member for securing the same in its adjusted position.

7. In a paper making machine, the combination of one or more rolls, bearings therefor each including in its structure a bearing surface member having a stem thereon with a passage extending longitudinally through said stem to the bearing surface of the membar, a tubular member into which said stem fits, said tubular member being adjustably positioned in an opening in a supporting part of the machine; and adapted by its adjustment to change the position of the bearing surface member and means connecting Copies of this patent may be obtained for to the outer end of the passage in the bearing surface member for supplying a fluid through said passage. 7

8. In a paper making machine, the combination of one or more rolls, bearings therefor each including in its structure a bearing surface member having a stem with a passage extending longitudinally through said stem to the bearing surface of the member, a tubular exteriorly screw-threaded member into which said stem fits and which is rotatably adjustable in a screw-threaded opening in a supporting part of the machine to thereby change the position of the bearing surface member; and means connecting to the outer end of the passage in the bearing surface member for supplying a fluid through said passage.

9. in a paper making machine, the combination of one or more rolls, bearings therefor each including'in its structure a bearing surface member having a stem thereon with a passage extending longitudinally through said stem to the bearing surface of the memher, a tubular member within which said stem fits, said tubular member being rotatably adjustably positioned in an opening in asupporting part of the machine to thereby change the position of the bearing surface member; and means connecting to the outer end of the passage in the bearing surface member for supplying a fluid through said passage at a pressure sufficient when applied between the opposing surfaces of the bearing surface member and roll to assist in sustaining the roll.

10. A hearing comprising a bearing surface member having a stem thereon with a passage extending longitudinally through said stem to the bearing surface of the memher, a rotatable longitudinally adjustable tubular supporting member into which the stem of the bearing surface member fits, and means connecting to the outer end of the passage in the bearing surface member for supplying a fluid through said passage.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JOHN STODDARD.

Witnesses:

EDWARD MARTIN, HENRY J. FEENEY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. (1. 

